updated for version 7.3.592

Problem:    Vim on GTK does not support g:browsefilter.
Solution:   Add a GtkFileFilter to the file chooser. (Christian Brabandt)

src/version.c

@@ -714,6 +714,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    592,
 /**/
     591,
 /**/